The electron configuration of $Fe^{3+}$ is (atomic number of $Fe = 26$)

  • A
    $[Ar] 3d^5 4s^1$
  • B
    $[Ar] 3d^6 4s^0$
  • C
    $[Ar] 3d^5 4s^0$
  • D
    $[Ar] 3d^6 4s^2$

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Similar Questions

Which orbital is closer to the nucleus: $2p$ or $3p$?

Which set of quantum numbers is not possible from the following?

Which of the following is the correct electronic configuration of $Cr$ (Chromium)?

The probability of finding an electron in the $d_{xy}$ orbital is maximum along:

Assertion $(A)$: Atoms with completely filled and half-filled subshells are stable.
Reason $(R)$: Completely filled and half-filled subshells have symmetrical distribution of electrons and have maximum exchange energy.
The correct answer is:

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